Answer:
3/9 is 1/3 because if you simply by 3, it will be 1/3 of 9
Slope = (Y2 - Y1) / (X2 - X1)
Slope = (5 - 3) / (5 - 8) = 2/-3 = -2/3
Answer: (B) -2/3
The mean of a sequence of numbers is the average.
The true statement is: 
The given parameters are:


The mean of a dataset is calculated as:

So, we have:

Multiply both sides by m

When the sequence is split into two, we have:


Where:

So, we have:

Hence, the true statement is: 
Read more about mean and averages at:
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Answer:
(3, 0)
Step-by-step explanation:
we have

we know that
The x-intercept is the value of x when the value of y is equal to zero
so
For y=0
substitute in the equation and solve for x


Divide by 7 both sides

therefore
The x-intercept is the point (3,0)
Step-by-step explanation:
L.H.S
tanA * cosecA
=sinA/cosA * 1/sinA
now cancel sinA and sinA
then,
1/cosA
= secA
= RHS
hence proved